Final answer:
The Anti-Federalists supported the 9th and 10th Amendments because they established limits on federal powers over individuals and states, reflecting their beliefs in power distribution and protection of rights not expressly mentioned in the Constitution.
Step-by-step explanation:
The Anti-Federalists supported the 9th and 10th Amendments primarily because these amendments established limits on federal powers over people and states. In essence, the 9th Amendment ensures that the rights enumerated in the Constitution do not mean that other rights do not exist. Similarly, the 10th Amendment reserves powers that are not explicitly delegated to the federal government by the Constitution for the states and the people. This mirrors the Anti-Federalist belief in the distribution of power and citizens' rights not expressly mentioned in the Constitution being protected.
Learn more about 9th and 10th Amendments